<template>
  <el-dialog width="500px"
             title="员工导入"
             :visible="showExcelDialog"
             @close="$emit('update:showExcelDialog', false)">
    <el-row type="flex"
            justify="center">
      <div class="upload-excel">
        <input ref="excel-upload-input"
               class="excel-upload-input"
               type="file"
               accept=".xlsx, .xls"
               @change="uploadChange">
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text"
                     @click="downloadTemplate">下载导入模板</el-button>
          <span>将文件拖到此处或
            <el-button type="text"
                       @click="uploadFile">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex"
            justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button size="mini"
                 type="primary"
                 @click="$emit('update:showExcelDialog', false)">取消</el-button>
    </el-row>
  </el-dialog>
</template>
<script>
import { getExportTemplate, importEmployee } from '@/api/employee'
import FileSaver from 'file-saver'
export default {
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    async downloadTemplate () {
      const result = await getExportTemplate()
      FileSaver.saveAs(result, '员工导入模板.xlsx')
    },
    uploadFile () {
      this.$refs['excel-upload-input'].click()

    },
    async uploadChange (event) {
      console.log(event);
      const files = event.target.files
      if (files.length > 0) {
        const data = new FormData()
        data.append('file', files[0])
        try {
          await importEmployee(data)
          this.$emit('oploadSuccess')
          this.$message.success('导入成功')
          this.$emit('update:showExcelDialog', false)

        } catch (error) {
          console.log(error);

        } finally {
          this.$refs['excel-upload-input'].values = ""
          this.$emit('update:showExcelDialog', false)
        }
      }
    }
  }
}
</script>

<style scoped lang="scss">
.upload-excel {
  display: flex;
  justify-content: center;
  margin: 20px;
  width: 360px;
  height: 180px;
  align-items: center;
  color: #697086;
  .excel-upload-input {
    display: none;
    z-index: -9999;
  }
  .btn-upload,
  .drop {
    border: 1px dashed #dcdfe6;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .drop {
    line-height: 40px;
    color: #bbb;
    i {
      font-size: 60px;
      display: block;
      color: #c0c4cc;
    }
  }
}
</style>